Water heater



Feb. 13, 1940. J, J, MacNElLL 2,190,454

WATER HEATER Filed June 6, 1938 John J Mac A ezZZ INVENTOR ATT ORNEYPatented Feb. 13, 1940 UNITED STATES PATENT OFFICE WATER HEATER John J.MacNeill, New York, N. Y. Application June 6, 1938, Serial No. 212,196

roman. (01. 126-54) the inner wall I2 and the top wall l3. This lip 20projects inwardly with respect to the heat passage I8 and constitutes abaflie to retard the vision of aheater of the indicated characterwhereby water may be heated while cooking, baking and roasting in theusual manner in order to economize the use of gas, electricity and oil,as the case may be.

The nature of the invention and the distinguishing features andadvantages thereof will appear when the following specification is readin connection with the accompanying drawing, in which: I

Fig. 1 is a plan view, partly in section, of a combined water heater andgas burner constructed in accordance with the invention.

Fig. 2 is a view of a portion of the water heater looking towardthe'underside thereof.

.Fig. 3 is a side view, partly in section, of the combined water heaterand burner.

Referring now more particularly to Figs. 1, 2, and 3, it will beapparent that there is shown a water heater 8 anda heating element 9,the same being in the form of a gas burner in the present instance. .Itis to be understood that any other form of heating element may be used,such as an electric element or an oil burner. The water heater 8consists of a hollow body l0 substantially square in the presentinstance. The body It consists of an outer wall ii, an inner wall l2,top wall l3 and a bottom wall II. The outer wall Ii is substantiallysquare with rounded corners, and the inner wall I! .is circular orannular. The top wall I3 is convex and the bottom wall it is straight.The various walls define a water space l5 consisting of relatively wideareas l6 at'the corners of the body I0 joined by narrow areas ll.Theinner wall I! defines the heat cated centrally of the body In. Thewall l2 has a plurality of grooves I 9 therein to increase the heatingsurface of the wall II. A lip 20 is formed integral with the body I IIat the juncture between passage I810-v uD-flow of heated a. plurality ofhot vision is made for air. The sides of the outer wall Hare tappedtoprovide a cold water inlet 2| and water outlets 22. Thus, prousing asingle water heater or for making a multiple connection of a,pluralityof heaters.

Suitable plugs 23 are provided to close the tapped openings not used.The under- 1 side of the wall I4 has bosses 24'forthe purpose ofconnecting element or gas with lugs 25 for that purpose.

the water heater with the heating burner 9', the latter being providedThe heating element 9 is of conventional construction and includescircular series tribute or direct the of gas orifices 26 which disflamesupwardly in proximity to the bottom and inner walls of the water heater8. The burner has the to supply a mixture of gas and usual feed pipe 21In use, a vessel containing the food substances and liquids to be cookedor boiled is placed on the water heater 8. At the same time wateradmitted to the water space of the heater thereby economizing viding awater space and narrow areas water will be caused other words, as thewater flows in the water given a rotary motion, therespace [5 it will be8 will be heated of gas. By proof relatively wide on the use consistingl6 and I 1, respectively, the

to eddy at the corners, or in by causing a more rapid heating of thewater.

As stated above, by

providing the grooves IS the heating surface of the inner wall l2ofthebody is increased, thereby increasing the heating efliciency.

What I claim as new is:

A device of the character described comprising, a hollow substantiallysquare-shaped body adapted to be supported above a heating element andproviding a water space and heat passage, said water space comprisingrelatively wide areas at the corners of the body joined'by relativelynarrow areas, said passage. ing surface thereof, wardly from' said hethe wall of the body surrounding being grooved to increase-the heatand abaflie projecting indy with respect to said passage to retard the flowof heated air.

John J. micnmn air to the burner.

